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53Q3 - dual swash-plate mod v2 (prototype)

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Uploaded by on May 13, 2009

First documented hover test of my v2 dual swash-plate mod for the 53Q3. No flybar - stabilization is provided by rate gyros on all three axis.

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Uploader Comments (cubusaddendum)

  • I think I mite need to go back to school you have two gyro on that helicopter and no tail rudder. I am missing something here, or you are beaten a dead horse with a stick.

  • Coaxial helicopters don't need a tail rudder. As a matter of fact, v2.3 hovers very nicely - it's just that the center of gravity is too low, which makes the airframe oscillate when I try to pitch it "off the ball".

  • See this video: "53Q3 - dual swash-plate mod v2.2"

  • very stable, nice job for a first ever flight!

    However, the walkera main shaft seem way too long... it seem that the long shaft would weaken the rigidity of the upper head structure... if there's a way to shorten that thing, u'd be able to reduce the length of the upper push rods as well, which in term would make the structure stronger...

    Still, 5 stars mate!

  • I think you are right about the shaft length. I've ordered spare inner shaft that I'm going to cut short. I'm also thinking about replacing those rate gyros with head-lock gyros.

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  • Nice mod.

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